(The boys didn't know it was Arcade Fire singing along with them that night -- they thought it was just a bunch of drunk people.)

The Dube Brothers are Quinn (drums, age 9), Jan (bass, age 11) and Liam (guitar, age 13). Their mother died of breast cancer two years ago, and the boys started singing and performing when she was sick to cheer her up. Over the past year or so the Brothers have played over 20 concerts, raising money for earthquake victims in Haiti. Over $85,000 so far, if you can believe it.

The band has a Youtube channel with videos from some of their shows. Here's a cover of Smells Like A Teen Spirit, performed at Capital Music Hall.